21858345

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28573}}^1$

素因数の和:28601

約数の個数: 24

約数和(自身を含む): 40117896

約数和(自身を除く): 18259551

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28573, 85719, 142865, 257157, 428595, 485741, 1285785, 1457223, 2428705, 4371669, 7286115, 21858345]

約数ペア:

[(1, 21858345), (3, 7286115), (5, 4371669), (9, 2428705), (15, 1457223), (17, 1285785), (45, 485741), (51, 428595), (85, 257157), (153, 142865), (255, 85719), (765, 28573)]